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    <div class="example" id="multiple-return-values">
      <h2><a href="./">Go by Example 中文版</a>: 多返回值</h2>
      
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            <p>Go 原生支持 _多返回值_。
这个特性在 Go 语言中经常用到，例如用来同时返回一个函数的结果和错误信息。</p>

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            <a href="http://play.golang.org/p/gX-ZVuKSe2v"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
          <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>

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          <div class="highlight"><pre><span class="kn">import</span> <span class="s">&quot;fmt&quot;</span>
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            <p><code>(int, int)</code> 在这个函数中标志着这个函数返回 2 个 <code>int</code>。</p>

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          <div class="highlight"><pre><span class="kd">func</span> <span class="nx">vals</span><span class="p">()</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">7</span>
<span class="p">}</span>
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          <div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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            <p>这里我们通过 <em>多赋值</em> 操作来使用这两个不同的返回值。</p>

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          <div class="highlight"><pre>    <span class="nx">a</span><span class="p">,</span> <span class="nx">b</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
    <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">a</span><span class="p">)</span>
    <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">b</span><span class="p">)</span>
</pre></div>

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            <p>如果你仅仅需要返回值的一部分的话，你可以使用空白标识符 <code>_</code>。</p>

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          <div class="highlight"><pre>    <span class="nx">_</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
    <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">c</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>

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          <div class="highlight"><pre><span class="gp">$</span> go run multiple-return-values.go
<span class="go">3</span>
<span class="go">7</span>
<span class="go">7</span>
</pre></div>

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            <p>我们接下来要学习的是 Go 函数另一个很好的特性：变参函数。</p>

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        下一个例子: <a href="variadic-functions">变参函数</a>
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